US3247567A - Process and apparatus for the production of fiber fleece - Google Patents

Process and apparatus for the production of fiber fleece Download PDF

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Publication number
US3247567A
US3247567A US300389A US30038963A US3247567A US 3247567 A US3247567 A US 3247567A US 300389 A US300389 A US 300389A US 30038963 A US30038963 A US 30038963A US 3247567 A US3247567 A US 3247567A
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United States
Prior art keywords
filaments
path
fleece
gas streams
members
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Expired - Lifetime
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US300389A
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English (en)
Inventor
Hartmann Ludwig
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Carl Freudenberg KG
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Carl Freudenberg KG
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Publication date
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • Fiber batts of fleeces such as those used in the manufacture of matting, filter materials or materials to be used as supports for acoating of plastics, should preferably have the fibers in a random arrangement, thereby achieving equal strengths in various directions.
  • such random arrangement is produced, for example, by the superposition of a plurality of webs, so that Ion the average a random distribution of fiber orientations is achieved.
  • One disadvantage of these materials consists in the fact that the individual layers tend to come apart. This characteristic can be overcome, however, lby the present invention.
  • the manufacture of the fiber fleeces is performed in the process of this invention by vertical and horizontal deposition of the fibers and matting them together in the manner of a cocoon.
  • the fibers or filaments used in building up the fiber fieeces are blown in an airstream to between a pair of suction rolls.
  • the suction rolls can be disposed one over the other, for example, the distance between the rolls corresponding approximately to the desired thickness of the ber fleece.
  • the fibers or filaments are carried in a current of gas or vapor of the width of the desired fleece against the pair of suction rolls in such a manner that, in the course of time, the fibers pour into the roller -gap over its entire width.
  • the' fibers or filaments Due to the turbulence of the airstream, the' fibers or filaments begin, at a predetermined distance in front of the rolls, to swing and oscillate back and forth. They are therefore seized in irregular order, sometimes by the upper suction roll and sometimes by the lower one, as they advance to between the pair of rolls. Since the rate of delivery of the fibers or filaments is a multiple of the rate at which the fiber batt is withdrawn, a short length of an individual fiber is drawn up, for example, by the upper suction roll, and due to the up and ⁇ d'own oscillation of the airstream carrying the fibers, an adjacent part of the fiber is seized in the next moment by a lower suction roll and thus the fiber is disposed in a vertical orientation.
  • the process of the invention comprises advancing a plurality of filaments along a path leading to between spaced iieece forming members so that the filaments move to adjacent and on to between said members.
  • Gas streams are passed in a direction extending transverse to the path and the gas streams have a component perpendicular to the path so that movement of the filaments as they pass to between the fleece forming members is disrupted and individual filaments are caused to be dispersed in back and forth random array with respect to the fleece forming members.
  • the filaments are collected as a fleece between the fleece forming members and the fleece so formed is moved away from between the fleece forming members.
  • the direction of movement of the gas streams is such that the said perpendicular components thereof are in a direction away from the path of the filaments toward the fleece forming members and of the fleece being formed.
  • the filaments advanced to the fleece forming members can be produced by spinneret's, and the filaments can move directly from the spinnel'ets to the fleece forming members so that continuous productionV of fleece from filament forming material, such as multiple polymers, can be achieved.
  • the fleece forming device of the invention can comprise perforated members disposed one on other side of the filament path and spaced apart a distance in excess of the filament thickness and equal to the'thickness for the fleece to be produced.
  • the gas streams utilized to disrupt the movement of the filaments can be drawn through the perforated members, or forced outwardly through these members so that as the filaments advance toward and between the perforated members, their movement is modified in a manner to provide a random array.
  • FIG. 1 - is a perspective view schematically indicating the combination of a spinneret and a fleece forming device
  • FIG. 2 is a schematic side elevation of a fleece forming device
  • FIG. 3 is a plan view of a portion of the device shown in FrG. 2; y
  • FIG. 4 is an elevation View taken along line 4 4 in FIG. 3.
  • a rank 6 made up of a plurality of monofilaments 7 disposed generally in a plane and issuing from spinneret head S, advance over a path extending from the spinneret head 8 toward the fleece forming device 9.
  • the spinneret head 8 includes gas delivering means 1) and 11, which means discharge a gas stream to impinge and entrain the filament forming mate*- rial as it issues from the spinneret head 8.
  • This gas stream serves to entrain and advance the filaments to adjacent the fleece forming device 9,
  • the fleece forming device 9 is made up of an upper endless screen 12 and a lower endless screen 13.
  • the upper endless screen 12 passes over the end wheel 14, which is driven in the direction indicated by the arrow 15 by drive gear 16, which intermeshes in driving relation with the gear 17 mounted on the end of the axle of the wheel 14.
  • the perforated screen 12 passes over idler wheel 1S.
  • the lower endless screen 13 passes over the drive wheel 19 and idler wheel 20.
  • suction chambers 21 and 22 Within the idler wheels 18 and 29 are, respectively, suction chambers 21 and 22, and each of these suction chambers has an intake opening, respectively, 23 and 24.
  • the suction chambers are fixedly mounted on the axles of the wheels in which they are, respectively, disposed.
  • the suction chamber 21 is a hollow chamber disposed about the axle 25 of the idler Wheel 13. This axle is mounted in journal blocks 26.
  • the suction chamber includes intake 27 which communicates with one end of the suction chamber, and this intake is fixedly mounted on the support 28 (FIG. 4).
  • a conduit 29 communicates the intake chamber with a vacuum source.
  • the filaments 7 in the rank 6 advance toward the fleece forming device 9 and during this advance are, individually, disposed in relatively straight lines. Suction is applied to the vicinity of the inlet to between the upper endless belt 12 and the lower endless belt 13, so that a gas stream is dra-wn along paths indicated by the arrows 30.
  • gas streams are provided in the vicinity of the inlet to the fleece forming device which have a Component perpendicular to the path of the filaments toward the fleece forming device.
  • Such gas streams occasion disruption of the movement of the filaments since substantial turbulence is created in the vicinity of the inlet. This causes successive portions of each filament to be shifted in direction so that the filaments extend up and down and across to provide a random array which builds up into a fleece of a thickness corresponding to the space of the runs of the endless screens disposed adiacent to each other.
  • a fleece forming device comprising:
  • Apparatus according to claim 9 the means for passing gas streams as aforesaid providing at least two of said gas streams to move away from the direction of advance of the filaments toward the fleece forming device.
  • a fleece forming device comprising:
  • Apparatus according to claim 12, wherein said means for passing gas streams is for providing gas streams moving away from the direction .of advance of filaments toward the eece forming device.
  • a device for forming a iieece from laments moving along a defined path comprising:
  • Apparatus yaccording to claim 14 said two gas supply means providing gas streams moving away from the direction ⁇ of yadvance of the iilaments toward the eece forming device.
  • Apparatus for the production of ee-ces from filaments moving along a defined path comprising:
  • Apparatus according to claim 17, wherein said Y means for passing gas streams is for providing gas streams moving away from the direction of advance yof ilaments toward the eece forming device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US300389A 1962-08-06 1963-08-06 Process and apparatus for the production of fiber fleece Expired - Lifetime US3247567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0037534 1962-08-06

Publications (1)

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US3247567A true US3247567A (en) 1966-04-26

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US300389A Expired - Lifetime US3247567A (en) 1962-08-06 1963-08-06 Process and apparatus for the production of fiber fleece

Country Status (4)

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US (1) US3247567A (de)
CH (1) CH421040A (de)
DE (1) DE1485529A1 (de)
GB (1) GB1067847A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389445A (en) * 1966-03-31 1968-06-25 Allied Chem Moving side wall crimping process and apparatus therefor
US3396443A (en) * 1966-02-08 1968-08-13 Techniservice Corp Strand treatment process and apparatus
DE1635479A1 (de) * 1967-09-29 1971-02-04 Celanese Corp Nichtgewebte Stoffe sowie Verfahren und Vorrichtung zu ihrer Herstellung
FR2333071A1 (fr) * 1975-11-28 1977-06-24 Monsanto Co Procede et disposif de fabrication d'un tissu non tisse
US4161054A (en) * 1975-04-17 1979-07-17 Serracant Jose M Method for continuously fulling and working textile material in rope form
US4567078A (en) * 1984-07-03 1986-01-28 Fiberglas Canada Inc. Process and apparatus to crimp fibres
EP0269221A3 (en) * 1986-09-29 1989-12-27 Mitsui Petrochemical Industries, Ltd. Very soft polyolefin spunbonded nonwoven fabric and its production method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT333631B (de) * 1973-11-28 1976-12-10 Fehrer Ernst Vorrichtung zum spinnen textiler fasern
JPS5668152A (en) * 1979-11-01 1981-06-08 Toa Nenryo Kogyo Kk Nonwoven fabric
JPS5668171A (en) * 1979-11-01 1981-06-08 Toa Nenryo Kogyo Kk Artificial leather
JPH01207462A (ja) * 1988-02-09 1989-08-21 Risuron:Kk フィラメントループ集合体からなるマット及びその製造方法及び装置
IT1265537B1 (it) * 1993-09-07 1996-11-22 M A E S R L Procedimento di crettatura e crettatrice meccanica.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577214A (en) * 1946-01-11 1951-12-04 Owens Corning Fiberglass Corp Glass mat for reinforcing plastics
US2586774A (en) * 1948-08-06 1952-02-26 Lucas Dev Inc Apparatus for drawing glass fibers
US2662044A (en) * 1949-07-28 1953-12-08 Owens Corning Fiberglass Corp Coated fabrics
US2878547A (en) * 1956-04-04 1959-03-24 American Viscose Corp Filament crimping apparatus and method
US2981999A (en) * 1956-07-09 1961-05-02 Apparatus and method for forming porous
US3044145A (en) * 1958-10-31 1962-07-17 Cocker Machine & Foundry Compa Apparatus and method for setting yarn and for crimping and setting yarn

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577214A (en) * 1946-01-11 1951-12-04 Owens Corning Fiberglass Corp Glass mat for reinforcing plastics
US2586774A (en) * 1948-08-06 1952-02-26 Lucas Dev Inc Apparatus for drawing glass fibers
US2662044A (en) * 1949-07-28 1953-12-08 Owens Corning Fiberglass Corp Coated fabrics
US2878547A (en) * 1956-04-04 1959-03-24 American Viscose Corp Filament crimping apparatus and method
US2981999A (en) * 1956-07-09 1961-05-02 Apparatus and method for forming porous
US3044145A (en) * 1958-10-31 1962-07-17 Cocker Machine & Foundry Compa Apparatus and method for setting yarn and for crimping and setting yarn

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396443A (en) * 1966-02-08 1968-08-13 Techniservice Corp Strand treatment process and apparatus
US3389445A (en) * 1966-03-31 1968-06-25 Allied Chem Moving side wall crimping process and apparatus therefor
DE1635479A1 (de) * 1967-09-29 1971-02-04 Celanese Corp Nichtgewebte Stoffe sowie Verfahren und Vorrichtung zu ihrer Herstellung
US4161054A (en) * 1975-04-17 1979-07-17 Serracant Jose M Method for continuously fulling and working textile material in rope form
FR2333071A1 (fr) * 1975-11-28 1977-06-24 Monsanto Co Procede et disposif de fabrication d'un tissu non tisse
US4567078A (en) * 1984-07-03 1986-01-28 Fiberglas Canada Inc. Process and apparatus to crimp fibres
EP0269221A3 (en) * 1986-09-29 1989-12-27 Mitsui Petrochemical Industries, Ltd. Very soft polyolefin spunbonded nonwoven fabric and its production method

Also Published As

Publication number Publication date
DE1485529A1 (de) 1969-06-26
CH421040A (de) 1966-09-30
GB1067847A (en) 1967-05-03

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